Home / 377,384.76-520,788.96-216,242.28

Finding the Fourth Proportional to 377,384.76, 520,788.96 and 216,242.28

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Solution

The fourth proportional to 377,384.76, 520,788.96 and 216,242.28 is: 298,413.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,384.76 : 520,788.96 = 216,242.28 : x
  2. Step 2: Convert to fraction form
    377,384.76/520,788.96 = 216,242.28/x
  3. Step 3: Cross multiply
    377,384.76x = 520,788.96 × 216,242.28
  4. Step 4: Simplify right side
    377,384.76x = 112,616,592,109.23
  5. Step 5: Solve for x
    x = 112,616,592,109.23/377,384.76
  6. Step 6: Final answer
    x = 298,413.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.